32. ---Oh, I’ve missed a good chance.

　 ---Yes. You ___ the chance when it came.

　 A should have taken　　 B should have　　 C might have taken　　 D had taken

31. ---I go out to play now, Mum?

　 ---No. You ____. You should do your homework first.

　 A Might; wouldn’t　　 B May; had better not　　 C Must; mustn’t　　 D Need; mustn’t

30. The old professor gave orders that the experiment ____ before 6:00.

　 A was finished　　　 B would finish　　　 C be finished　　　　 D shall be finished

29. ---When can I come for the photos? I need them tomorrow afternoon.

　 ---They ____ be ready by 12:00.

　 A can　　　 B should　　　 C might　　 D need

28. It’s nearly seven o’clock. Jack ____ be here at any moment.

　 A must　　 B need　　　 C should　　　 D can

27. I told Sally how to get there, but perhaps I ____ for her.

　 A had to write it out　　　　 B must have written it out

　 C should have written it out　 D ought to write it out

26. Tom ought not to ____ me your secret, but he meant no harm.

　 A have told　　 B tell　　　　 C be telling　 　　　D having told

25. Jenny ____ have kept her word. I wonder why she changed her mind.

　 A must　　 B should　　　 C need　　　 D can

24. You ____ take down the address, or you may forget where to go.

　 A would rather　　 B need　　 C would like to　　　 D had better

23. ---I was too busy to help him with the problem.

　 ---But you ____.

　 A ought to　　　 B should　　　 C ought to have　　　 D should do